问答题简答题：双套UPS及外电的切换使用方法是什么？

题型：实验题

（16分）利用钛白工业的副产品FeSO₄（含TiO²⁺、Al³⁺）可以生产电池级高纯超微细草酸亚铁。其工艺流程如下：

（1）检验FeSO₄是否已有部分氧化的方法是。

（2）已知过滤1得到的滤渣的主要成分是Al(OH)₃、H₂TiO₃。请补充化学方程式：

TiOSO₄+ ＝H₂SO₄+ H₂TiO₃↓；铁粉的作用有：①除去溶液中的Fe³⁺，② 。

（3）沉淀反应的离子方程式是。

（4）沉淀过程的反应温度为40℃，温度不宜过高的原因除了控制沉淀的粒径外，还有。FeC₂O₄生成后，为提高产品纯度，还需调节溶液pH＝2，若pH过低，则导致FeC₂O₄的产率______（填“偏高”、“偏低”或“无影响”）。

（5）过滤2得到的滤液经蒸发浓缩、、洗涤可得到副产品，该物质可用作 (写出一种用途)。

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题型：完形填空

完形填空。

     Eighty-year-old retired tailor, James McKay, spent Saturday night in jail after   1   thirty-year-old Keith
Smith over the head   2   his walking stick. McKay's wife, Laurence told us that while McKay is usually a
   3   person, he had been   4   to this act of violence by getting wet just once too often.
     Smith lives above the McKays and it appears that not only is he a keen gardener, he is also a   5   collector.
Unfortunately for him, the water he sent over his balcony every day ended up on the McKay's, or too often,
on the McKays   6 .
     "For the last fortnight, since Smith moved into the flat above us, we have hardly dared to go to our   7  ,"
said Laurene. She added, that it wasn't so much the water falling onto their balcony from Smith watering his
plant   8   bothered them, it was more the way he cleaned his fish tanks. "We'd be   9   there happily reading
our newspapers, when  10  so much water would come from above that we'd be as wet as if we'd  11  with
our clothes on! Neither could we get rid of the  12  of fish!"
     And on Saturday evening it was just too  13 . "It was James's birthday," explained Laurene, "and I'd made
him a birthday cake. The candles were a great sight as you can imagine, but James didn't get to blow them
out."  14 , Smith emptied one of his larger tanks over his balcony and both the McKays and the cake were wet
  15 . Rarely had Laurene seen McKay move so fast. "I couldn't  16  him. He was up there in a flash. It was
the fastest I'd seen him move since 1964."
     Smith is not going to take things further with the police. He has also promised to change his  17   from now
on. And what of James McKay?  18  he left the police station, a large crowd of supporters sang him, "Happy
Birthday  19  the most exciting birthday  20 !" said the cheerful old man. "The best since my adolescence I'd
say!"

( )1. A. hitting
( )2. A. by
( )3. A. quiet
( )4. A. accustomed
( )5. A. fish
( )6. A. themselves
( )7. A. bathroom
( )8. A. which
( )9. A. sitting
( )10. A. regularly
( )11. A. swum
( )12. A. taste
( )13. A. little
( )14. A. Otherwise
( )15. A. over
( )16. A. stop
( )17. A. views
( )18. A. While
( )19. A. Sincerely
( )20. A. before

B. tapping
B. with
B. sensitive
B. driven
B. seed
B. itself
B. balcony
B. what
B. exercising
B. suddenly
B. watered
B. smell
B. soon
B. Besides
B. across
B. blame
B. attitude
B. Since
B. Impossibly
B. already

C. pushing
C. through
C. stubborn
C. taken
C. plant
C. herself
C. bedroom
C. that
C. sleeping
C. precisely
C. showered
C. feeling
C. late
C. Instead
C. through
C. ignore
C. minds
C. Until
C. Previously
C. ever

D. touching
D. via
D. peaceful
D. attracted
D. newspaper
D. himself
D. kitchen
D. whether
D. eating
D. unconsciously
D. drowned
D. sense
D. much
D. Consequently
D. down
D. stand
D. ways
D. As
D. Definitely
D. since

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题型：单项选择题

电子病案系统构成包括（）

A.资源系统

B.资源系统、支持基础层、人一机界面

C.支持基础层、人一机界面

D.资源系统、人一机界面

E.资源系统、支持基础层

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题型：单项选择题

奥氏分析仪使用后应首先分析（）。

A、O₂

B、N₂

C、水分

D、RO₂

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题型：单项选择题

以下不属于成员国必须一揽子接受的WTO协定是( )。

A．《关贸总协定(GATT)》

B．《服务总协定(GATS)》

C．《政府采购协定》

D．《与贸易有关的投资措施协定(TRIMS)》

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双套UPS及外电的切换使用方法是什么？

题目：

答案：